0
The Cassegrain reflector is a folded optics design, using two mirrors to fold the light path back on itself. This increases the focal length of the telescope, without increasing it's length. By doing so you can compact a more powerful telescope into a smaller frame, which has advantages for small amateur scopes (portability) and large professional ones (reduced cost).
First developed in 1672 by Laurent Cassegrain, this reflector is a combination of a primary concave mirror and a secondary convex mirror, both aligned symmetrically about the optical axis. The primary mirror usually contains a hole in the centre thus permitting the light to reach an eyepiece, a camera, or a light detector. The primary mirror is parabolic while the secondary mirror is hyperbolic.
Of the three basic types of telescopes: refractors, reflectors and catadioptrics, the Cassegrain reflector falls under the categories of reflecting and Catadioptric designs.
What else can I help you with?
Who invented theCassegrain telescope?
Laurent Cassegrain, a French priest and astronomer, invented the Cassegrain telescope in the mid-17th century. The design features a concave primary mirror with a secondary convex mirror, allowing light to be reflected back through a hole in the primary mirror for viewing.
Are the Casseragrain and the relfecting telescopes the same type of telescope?
The Cassegrain has a hole in the mirror, at the bottom of the scope, where the reflector mirror reflects the light onto the viewing piece. So, the Cassegrain is a reflection telescope but it's primary and secondary mirrors work a bit differently than most reflecting telescopes.
What telescope design has a hole in the center of the main mirror?
A telescope design that has a hole in the center of the main mirror is called a "Cassegrain telescope." This design uses a secondary mirror to reflect the light back through the hole in the primary mirror to the eyepiece or sensor, allowing for a more compact design and longer focal length.
What type of telescope concave mirrors to gather light and view the image?
Reflecting telescopes use concave mirrors to gather and focus light to form an image. The primary mirror in a reflecting telescope collects incoming light and reflects it to a secondary mirror, which then directs the light to the eyepiece or camera for viewing. This design is commonly used in telescopes like Newtonian reflectors and Cassegrain telescopes.
How old was the Telescope Inventor when he made the Telescope?
The Telescope Inventor, Hans Lippershey, was believed to have been in his 40s when he made the telescope around 1608.
What type of telescope is the Webb telescope?
A Cassegrain reflector
What category is the Hubble Space Telescope?
The HST is a Cassegrain reflector telescope.
What is a design of astronomical reflecting telescope?
Cassegrain
What type is the the hubble space telescope?
HST's primary mirror is a Cassegrain Reflector.
Who invented theCassegrain telescope?
Laurent Cassegrain, a French priest and astronomer, invented the Cassegrain telescope in the mid-17th century. The design features a concave primary mirror with a secondary convex mirror, allowing light to be reflected back through a hole in the primary mirror for viewing.
Are the Casseragrain and the relfecting telescopes the same type of telescope?
The Cassegrain has a hole in the mirror, at the bottom of the scope, where the reflector mirror reflects the light onto the viewing piece. So, the Cassegrain is a reflection telescope but it's primary and secondary mirrors work a bit differently than most reflecting telescopes.
What are the main differences between a Dobsonian telescope and a Schmidt-Cassegrain telescope, and which one would be more suitable for my stargazing needs?
The main differences between a Dobsonian telescope and a Schmidt-Cassegrain telescope are their design and portability. Dobsonian telescopes are simpler in design and offer larger apertures for better light-gathering ability, making them ideal for deep-sky observation. Schmidt-Cassegrain telescopes, on the other hand, are more compact and versatile, with a folded optical path that allows for a longer focal length in a shorter tube. They are better suited for planetary and lunar observation. For stargazing needs focused on deep-sky objects, a Dobsonian telescope would be more suitable due to its larger aperture and simpler design. If you are interested in planetary and lunar observation, a Schmidt-Cassegrain telescope may be a better choice for its compactness and versatility.
What telescope design has a hole in the center of the main mirror?
A telescope design that has a hole in the center of the main mirror is called a "Cassegrain telescope." This design uses a secondary mirror to reflect the light back through the hole in the primary mirror to the eyepiece or sensor, allowing for a more compact design and longer focal length.
What is the Hubble space telescope's magnification?
It does not have a magnification properly speaking since it works as a camera, not a visual telescope. The aperture of the Cassegrain-Schmidt mirror is 2.4 m. The main camera has 16 MB.
Type of telescope?
Different telescopes utilize different parts of the electromagnetic spectrum. Two types of optical telescope are refracting and reflecting. There are also different kinds of radio telescope investigating different bandwidths from the infra red to the untra violet
Is hubble space telescope a convex?
No - HSTs' primary mirror is a Cassegrain Reflector of Ritchey-Chrétien design, which contains a hyperbolic primary/secondary mirror.
What were the inventions made during the period between 1400 to 1700 AD?
Mercury barometer - invented by Evangelist Torricelli (1608) barometer Aneroid barometer - invented by Lucien Vidie in 1843 Cassegrain telescope thermometer pendulum clock
